WORKEASE Diamond Hole Saw Kit, 11 Pcs Dry/Wet Brazing Tile Hole Saw Kit (1/4"-2”) with Hole Saw Guide, Diamond Drill Bits for Ceramic, Glass, Marble, Porcelain Tile Cutter

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Convert the two modes (big mode to small mode) Step 1: Remove the nut shown from the axle wheel.

Step 2: Install the nut shown in the following holes.

Step 3: Push the knob to use the small bit mode.

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Features & details Features [Brazing Process--10 Times Service Life]All brazed hollow tile hole saw is made of alloy high strength steel by continuous billet casting process., and then the ultra-fine diamond abrasive is attached to the bit through brazing technology, its service life is 10 times that of ordinary.

Dry/Wet useThe glass hole saw kit is treated with a special high temperature resistant process, can withstand the heat from high speed drilling.

Realizes waterless drilling, which is